| 氮肥用量和运筹方式对机插早稻产量的影响 |
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| 引用本文： | 吴春赞,林华,赵佩欧,赖联赛. 氮肥用量和运筹方式对机插早稻产量的影响[J]. 江西农业学报, 2010, 22(1): 37-39 |
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| 作者姓名： | 吴春赞 林华 赵佩欧 赖联赛 |
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| 作者单位： | 1. 浙江省苍南县农业局,浙江,苍南,325800
2. 浙江省温州市农业站,浙江,温州,325005 |
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| 基金项目： | 浙江省温州市2007年度科技项目(N20070004);;浙江省苍南县2009年科技计划项目(2009N02) |
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| 摘 要： | 田间试验结果表明,施氮量在0~225 kg/hm2的范围内,机插早稻的单位面积产量与施氮量呈二次函数关系,其关系式为y=-0.0742x2+28.979x+4068.3,即当施氮量为195.3 kg/hm2时,单位面积产量最高。与习惯施肥方法(基肥∶蘖肥∶穗肥=7∶3∶0)相比,适当增加分蘖肥的施用比例,有利于机插早稻产量的提高,在大田总施氮量为180 kg/hm2的条件下,施用比例以基肥∶分蘖肥∶穗肥为4∶5∶1或5∶4∶1的运筹方式为佳。
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| 关 键 词： | 早稻 机插 氮肥用量 氮肥运筹方式 产量 |
Effects of Nitrogen Fertilizer Dosage and Application Mode on Yield of Mechanically-transplanted Early Rice |
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| WU Chun-zan,LIN Hua,ZHAO Pei-ou,LAI Lian-sai. Effects of Nitrogen Fertilizer Dosage and Application Mode on Yield of Mechanically-transplanted Early Rice[J]. Acta Agriculturae Jiangxi, 2010, 22(1): 37-39 |
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| Authors: | WU Chun-zan LIN Hua ZHAO Pei-ou LAI Lian-sai |
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| Affiliation: | 1.Cangnan Agricultural Bureau in Zhejiang Province/a>;Cangnan 325800/a>;China/a>;2.Wenzhou Agricultural Station in Zhejiang Province/a>;Wenzhou 325005/a>;China |
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| Abstract: | The result of field experiment showed that the unit area yield(y) appeared a quadratic curve relation(y=-0.0742x2+28.979x+4068.3) with the application rate of nitrogen fertilizer(x) in the range of 0～225 kg/hm2 for mechanically-transplanted early rice.There was the highest unit area yield when the application rate of nitrogen fertilizer was 195.3 kg/hm2.Compared with the traditional nitrogen fertilizer application mode(basal fertilizer∶tillering fertilizer∶earing fertilizer=7∶3∶0),properly increasing the proportion of tillering fertilizer could enhance the yield of mechanically-transplanted early rice.Under the condition of applying 180 kg/hm2 nitrogen fertilizer,the better application mode of nitrogen fertilizer was basal fertilizer∶tillering fertilizer∶earing fertilizer=4∶5∶1 or basal fertilizer∶tillering fertilizer∶earing fertilizer=5∶4∶1. |
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| Keywords: | Early rice Transplanting by machine Nitrogen fertilizer dosage Nitrogen application mode Yield |
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